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PT1219266E - Implant for the insertion between the vertebraes and operation tool for using the implant - Google Patents

Implant for the insertion between the vertebraes and operation tool for using the implant Download PDF

Info

Publication number
PT1219266E
PT1219266E PT01126995T PT01126995T PT1219266E PT 1219266 E PT1219266 E PT 1219266E PT 01126995 T PT01126995 T PT 01126995T PT 01126995 T PT01126995 T PT 01126995T PT 1219266 E PT1219266 E PT 1219266E
Authority
PT
Portugal
Prior art keywords
implant
implant part
shaft
threaded
vertebrae
Prior art date
Application number
PT01126995T
Other languages
Portuguese (pt)
Inventor
Carsten Neumann
Original Assignee
Ulrich Gmbh & Co Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7669147&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=PT1219266(E) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ulrich Gmbh & Co Kg filed Critical Ulrich Gmbh & Co Kg
Publication of PT1219266E publication Critical patent/PT1219266E/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/46Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4611Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/46Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/28Bones
    • A61F2002/2835Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
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    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30362Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit with possibility of relative movement between the protrusion and the recess
    • A61F2002/30369Limited lateral translation of the protrusion within a larger recess
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    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30362Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit with possibility of relative movement between the protrusion and the recess
    • A61F2002/3037Translation along the common longitudinal axis, e.g. piston
    • A61F2002/30372Translation along the common longitudinal axis, e.g. piston with additional means for limiting said translation
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    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30383Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
    • A61F2002/3039Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove with possibility of relative movement of the rib within the groove
    • A61F2002/30397Limited lateral translation of the rib within a larger groove
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30405Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30492Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a locking pin
    • AHUMAN NECESSITIES
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    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30495Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a locking ring
    • AHUMAN NECESSITIES
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    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
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    • A61F2002/30518Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements with possibility of relative movement between the prosthetic parts
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    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
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    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772Apertures or holes, e.g. of circular cross section
    • A61F2002/30777Oblong apertures
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772Apertures or holes, e.g. of circular cross section
    • A61F2002/30784Plurality of holes
    • A61F2002/30785Plurality of holes parallel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/46Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2002/4625Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use
    • A61F2002/4627Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/46Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2002/4631Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor the prosthesis being specially adapted for being cemented
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/46Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2002/4632Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor using computer-controlled surgery, e.g. robotic surgery
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0033Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Transplantation (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Cardiology (AREA)
  • Neurology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)

Abstract

The spinal implant comprises an outer sleeve (2), an inner core (3) and a nut (4) all made of a biological inert metal alloy and centered on a common axis. The nut engages the external screw threads of the core and has an externally accessible array of bevel gear teeth such that rotation of nut causes axial displacement of the core relative to the sleeve. An independent claim is included for spinal implant and a setting tool.

Description

DESCRIÇÃO "IMPLANTE PARA INSERÇÃO ENTRE CORPOS VERTEBRAIS, ASSIM COMO INSTRUMENTO CIRÚRGICO PARA MANUSEAMENTO DO IMPLANTE"DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FOR IMPLEMENTATION BETWEEN VERTEBRAL BODIES, AS A SURGICAL INSTRUMENT FOR HANDLING THE IMPLANT "

Implante para inserção entre corpos vertebrais, assim como instrumento de operação para manuseamento do implante em conformidade com o conceito genérico da reivindicação 1. A presente invenção refere-se a um implante para inserção entre corpos vertebrais da coluna vertebral como substituto para as vértebras ou partes de vértebras retiradas da coluna vertebral com uma primeira parte de implante e uma segunda parte de implante reguláveis reciprocamente no sentido do seu eixo longitudinal coaxial para modificação de comprimento do implante. Além disso, a invenção refere-se a um instrumento de operação com o qual é possível realizar a modificação de comprimento do implante.The present invention relates to an implant for insertion between vertebral bodies of the vertebral column as a substitute for the vertebrae or parts of the vertebrae, of vertebrae withdrawn from the vertebral column with a first implant part and a second implant part mutually adjustable in the direction of its coaxial longitudinal axis for modifying the length of the implant. In addition, the invention relates to an operating instrument with which it is possible to carry out the modification of the length of the implant.

Um implante do tipo mencionado inicialmente é conhecido, por exemplo, do documento DE 4423257 Al, que na prática deu bom resultado e com o qual foi possível alcançar sucessos de cura muito bons após a implantação. Durante a implantação numa cirurgia na coluna vertebral aberta, demonstrou-se, no entanto, como parcialmente problemático a necessidade de um campo de operação grande para aparafusar a primeira parte de implante em relação à segunda parte de implante, uma vez que é necessário realizar a rotação mútua por meio de movimentos de rotação. Contudo, em nem sempre existe espaço suficiente para tais movimentos de rotação, particularmente quando no sentido de uma 1 cirurgia minimamente invasiva são realizadas apenas acessos pequenos à coluna vertebral.An implant of the type mentioned initially is known, for example, from DE 4423257 A1, which in practice gave good result and with which it was possible to achieve very good cure successes after implantation. During implantation in an open spine surgery, however, it has been shown as partially problematic the need for a large operating field for screwing the first implant part relative to the second implant part, since it is necessary to perform the rotation by means of rotational movements. However, there is not always sufficient space for such rotational movements, particularly when in the direction of a minimally invasive surgery only small accesses to the spine are performed.

Por esta razão, o objectivo da invenção consiste em conceber um implante do tipo mencionado inicialmente de tal modo que também pode ser realizada uma modificação de comprimento do implante sem que para isso seja necessário um movimento de rotação do instrumento de operação previsto para o accionamento do implante. Objectivo da invenção é, além disso, disponibilizar um instrumento de operação que é especialmente bem adequado para interagir com o implante de acordo com a invenção. A parte do objectivo que diz respeito ao implante é solucionada num implante do tipo mencionado inicialmente por à primeira parte de implante estar atribuído um anel roscado giratório, o qual engrena com uma rosca anelar numa rosca atribuída à segunda parte de implante, e por o anel roscado estar provido de um dentado de engrenagem cónica.For this reason, the object of the invention is to design an implant of the type mentioned initially in such a way that a modification of the length of the implant can also be carried out without requiring a rotation movement of the operating instrument provided for the actuation of the implant implant. The aim of the invention is furthermore to provide an operating instrument which is especially well suited for interacting with the implant according to the invention. The implant part of the aim is solved in an implant of the type mentioned initially in that the first implant part is assigned a rotating threaded ring, which engages with an annular thread in a thread assigned to the second implant part, and in that the ring is provided with a bevel gear.

Este implante oferece a grande vantagem de ser possível realizar devido ao dentado de engrenagem cónica uma rotação da segunda parte de implante através de um instrumento de operação aplicado de apenas radialmente no implante, unicamente com a sua rotação. Deste modo, um acesso substancialmente pontual ao implante é suficiente para a modificação de comprimento, facto pelo qual é evitada uma ferida que é aumentada unicamente para fins de distracção.This implant offers the great advantage that it is possible to realize, due to the bevel gear, a rotation of the second implant part through an operation instrument applied only radially in the implant, solely with its rotation. Thus, substantially punctual access to the implant is sufficient for length modification, whereby a wound which is augmented solely for distraction purposes is avoided.

Segundo uma forma de realização preferida da invenção está previsto que a primeira parte de implante e a segunda parte de implante estejam concebidas como casquilhos em forma de tubo, e que a primeira parte de implante envolva exteriormente com o 2 anel roscado a segunda parte de implante. Esta configuração da invenção mediante a utilização de dois casquilhos oferece a vantagem de o espaço interior do implante estar livre e poder ser aproveitado para preencher, por exemplo, com cimento ósseo ou enxertos ósseos do próprio doente ou de terceiros para que o implante se possa incorporar de forma segura no osso. Com o intuito de evitar um aperto ou outro bloqueio da rosca durante a modificação de comprimento do implante ao aparafusar a segunda parte de implante em relação à primeira parte de implante, o implante está configurado de tal modo que na segunda parte de implante está concebida pelo menos uma fenda de guia para a recepção de um pino atribuído à primeira parte de implante. Para fins de uma guia melhorada, comprovou-se neste caso que dá bom resultado se a fenda de guia e o pino estiverem previstos duas vezes em disposição diametral.According to a preferred embodiment of the invention it is provided that the first implant part and the second implant part are designed as tube-shaped bushes, and that the first implant part externally surrounds the threaded ring the second implant part . This configuration of the invention through the use of two bushings offers the advantage that the interior space of the implant is free and can be used to fill, for example, with bone cement or bone grafts from the patient himself or from third parties so that the implant can be incorporated safely in the bone. In order to avoid a tightening or other locking of the thread during the modification of implant length by screwing the second implant part relative to the first implant part, the implant is configured such that in the second implant part is designed by the less a guide slot for receiving a pin assigned to the first implant part. For purposes of an improved guide, it has been found in this case that it gives good result if the guide slot and the pin are provided twice in diametral arrangement.

Com o intuito de simplificar o accionamento do anel roscado por meio de um instrumento de operação, na parede da primeira parte de implante em forma de tubo está prevista pelo menos uma abertura que intercepta o rebordo atribuido ao anel roscado. Esta abertura pode ser aproveitada como um apoio para o instrumento de operação a aplicar no implante.In order to simplify the drive of the threaded ring by means of an operating instrument, at least one aperture intersecting the collar assigned to the threaded ring is provided on the wall of the first tube-shaped implant part. This opening can be used as a support for the operating instrument to be applied to the implant.

Para não ter de restringir a guia do instrumento de operação à espessura da parede do casquilho, na segunda parte de implante existem dois orifícios oblongos de forma alinhada com a abertura. Estes orifícios oblongos permitem também que esteja concebido um furo roscado no lado oposto à abertura na parede da primeira parte de implante, que pode então ser alcançado pela abertura. 3In order to not have to restrict the guide of the operating instrument to the thickness of the wall of the bushing, there are two oblong holes aligned with the aperture in the second implant part. These oblong holes also allow for a threaded bore to be designed on the side opposite the opening in the wall of the first implant part, which can then be reached by the aperture. 3

No que diz respeito a uma incorporação mais rápida do implante, revelou-se, além disso, como vantajoso se na segunda parte de implante estiver concebida uma coroa na extremidade oposta à primeira parte de implante. Esta coroa aumenta a superfície de apoio da segunda parte de implante no corpo vertebral. Se a coroa estiver disposta com distância da extremidade livre da segunda parte de implante, esta pode servir como fixação para cimento para ossos a introduzir e simultaneamente proteger a rosca contra a deposição do cimento para ossos. Em alternativa é igualmente possivel que na coroa estejam concebidos orifícios em paralelo relativamente ao eixo longitudinal do implante.With regard to a faster incorporation of the implant, it has also proved advantageous if in the second implant part a crown is designed at the end opposite the first implant part. This crown increases the bearing surface of the second implant part in the vertebral body. If the crown is disposed with a distance from the free end of the second implant part, it may serve as bone cement fixture to be introduced and simultaneously protect the thread against deposition of the bone cement. Alternatively, it is also possible for the crown to be designed in parallel with the longitudinal axis of the implant.

Com o intuito de alcançar um comprimento de guia tão grande tanto quanto possivel do anel roscado na rosca, o implante está configurado de tal modo que o anel roscado apresenta um rebordo anelar no perímetro interior.In order to achieve a guide length as large as possible of the threaded ring on the thread, the implant is configured such that the threaded ring has an annular collar at the inner perimeter.

Para poder realizar uma fixação da posição do anel roscado em relação à primeira parte de implante, o implante de acordo com a invenção está, além disso, configurado de tal forma que a primeira parte de implante apresenta uma ranhura transversal concebida no casquilho em forma de tubo de forma perpendicular em relação ao eixo longitudinal do implante. Esta ranhura transversal encontra-se de forma adequada em paralelo relativamente ao eixo de ligação da abertura e do furo roscado. Além disso, é vantajoso se a ranhura transversal estiver concebida em ambos os lados do eixo de ligação no casquilho em forma de tubo da primeira parte de implante. A parte do objectivo que diz respeito ao instrumento de operação do objectivo é solucionada por um instrumento de 4 operação para distracção de um implante que apresenta um dentado de engrenagem cónica e que é ajustável em comprimento através de uma união roscada, para inserção entre corpos vertebrais da coluna vertebral como substituto para vértebras retiradas da coluna vertebral, em que na extremidade livre de um veio está disposto um pinhão coaxial em relação ao eixo do veio com um dentado de engrenagem cónica. Através deste instrumento de operação é possível rodar o dentado de engrenagem cónica do pinhão mediante o veio afastado radialmente do implante, que está orientado de forma perpendicular ao eixo longitudinal do implante, unicamente mediante a rotação do veio à volta do eixo longitudinal, que ao interagir com o dentado de engrenagem cónica do anel roscado realiza a rotação da primeira parte de implante e da segunda parte de implante relativamente uma à outra necessária para modificação de comprimento do implante.In order to be able to perform a fixation of the position of the threaded ring with respect to the first implant part, the implant according to the invention is further configured in such a way that the first implant part has a transverse groove conceived in the sleeve in the form of tube perpendicular to the longitudinal axis of the implant. This transverse groove is suitably parallel in relation to the connecting axis of the aperture and the threaded bore. Furthermore, it is advantageous if the transverse groove is designed on both sides of the connecting shaft in the tube-shaped socket of the first implant part. The part of the objective relating to the operating instrument of the object is solved by a distractioning instrument of an implant having a bevel gear and which is adjustable in length through a threaded joint for insertion between vertebral bodies of the spine as a substitute for vertebrae withdrawn from the vertebral column, wherein at the free end of a shaft is a pinion coaxial to the axis of the shaft with a bevel gear. By means of this operating tool it is possible to rotate the pinion gear of the pinion by means of the radially spaced shaft of the implant, which is oriented perpendicular to the longitudinal axis of the implant, solely by rotation of the shaft about the longitudinal axis, which when interacting with the bevel gear of the threaded ring rotates the first implant part and the second implant part relative to one another necessary for modifying the implant length.

Para um manuseamento mais fácil do instrumento de operação durante a operação, está previsto que o veio esteja montado de forma giratória num punho e que esteja provido de uma roda de accionamento na extremidade oposta ao pinhão para accionamento.For easier handling of the operating instrument during operation, it is provided that the shaft is rotatably mounted to a handle and is provided with a drive wheel at the end opposite the drive pinion.

Uma forma de realização especialmente preferida do instrumento de operação está caracterizada por o veio estar concebido como veio oco, no qual está montada uma barra rotativa em relação ao veio oco, que atravessa o pinhão com a sua extremidade livre e no qual está concebida uma rosca da barra que corresponde ao furo roscado. Isto oferece a vantagem de ser possível fixar a posição da primeira parte de implante em relação ao instrumento de operação através da rosca da barra, de modo que não é provocada uma modificação da posição do substituto posicionado entre os corpos vertebrais da coluna vertebral ao exercer a pressão necessária para engrenar o 5 dentado de engrenagem cónica do pinhão com o dentado de engrenagem cónica do anel roscado.An especially preferred embodiment of the operating instrument is characterized in that the shaft is designed as a hollow shaft in which a bar is rotatable relative to the hollow shaft which passes through the pinion with its free end and in which a thread of the bar that corresponds to the threaded bore. This offers the advantage that it is possible to fix the position of the first implant part relative to the operating tool through the thread of the bar so that a change in the position of the replacement positioned between the vertebral bodies of the spine is not caused by pressure required to engage the pinion bevel gear with the bevel gear of the threaded ring.

Uma outra forma de realização preferida da invenção é caracterizada por o veio estar disposto num casquilho fixo ao punho, que na extremidade atribuída ao pinhão apresenta uma forquilha com dedos de forquilha originam uma fixação da posição axial mútua do anel roscado e da primeira parte de implante. Neste caso, revelou-se como vantajoso se a forquilha apresentar ao todo quatro dedos de forquilha que suportam o implante, dos quais dois estão agrupados num primeiro par de forquilha e previstos para o apoio no anel roscado e dois estão agrupados num segundo par de forquilha e previstos para inserção nas ranhuras transversais. Com um instrumento de operação deste género é possível agarrar o implante de forma muito segura e mantê-lo num local predeterminado, em que apesar da rotação necessária do veio para a modificação de comprimento, não existe nenhum perigo de o implante no campo de operação se deslocar ou o primeiro implante e o segundo implante se deslocarem reciprocamente e, assim, assumirem um prolongamento do comprimento, que não é realizado através de uma rotação do anel roscado e não segurado é protegido por este.A further preferred embodiment of the invention is characterized in that the shaft is arranged in a bushing fixed to the handle, which in the end assigned to the pinion has a fork with fork, provide a mutual axial position of the threaded ring and the first implant part . In this case, it has proved advantageous if the fork has in all four forks which support the implant, two of which are grouped in a first fork pair and provided for the support in the threaded ring and two are grouped in a second pair of fork and provided for insertion into the transverse grooves. With such an operating instrument it is possible to grasp the implant very securely and hold it in a predetermined location, in which despite the necessary rotation of the shaft for the length modification, there is no danger of the implant in the field of operation if or the first implant and the second implant move reciprocally and thus assume an extension of the length which is not achieved by a rotation of the threaded and uninsured ring is protected thereby.

Com vista às relações higiénicas melhoradas na desinfecção, é conveniente se o veio com a roda de accionamento, a barra e o punho com o casquilho estiverem montados de forma a poderem ser desmontados.In view of the improved hygienic relationships in the disinfection, it is convenient if the shaft with the drive wheel, the bar and the handle with the bushing are assembled so that they can be disassembled.

Em seguida, a invenção deve ser explicada mais detalhadamente com base num exemplo de realização representado no desenho, ilustram: 6Thereafter, the invention is explained in more detail on the basis of an example of embodiment shown in the drawing, illustrating:

Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 7 Fig. 8 Fig. 9 Fig. 1 uma representação em perspectiva do implante de acordo com a invenção no accionamento através do instrumento de operação de acordo com a invenção, uma representação em perspectiva do implante isolado, uma representação em perspectiva da segunda parte de implante, uma representação em perspectiva da primeira parte de implante, uma representação em perspectiva da primeira parte de implante de uma outra vista em relação à fig. 4, uma vista lateral da segunda parte de implante, uma vista lateral da segunda parte de implante com uma representação rodada a 90° em relação à fig. 6, um corte transversal pelo anel roscado que apresenta o dentado de engrenagem cónica, o instrumento de operação de acordo com a invenção desmontado nas suas peças individuais numa vista de cima, 0 uma representação em perspectiva do instrumento de operação completamente montado e desmontado nas suas peças individuais, 71 is a perspective view of the implant according to the invention in the drive through the operating instrument according to the invention; FIG. with the invention, a perspective representation of the insulated implant, a perspective representation of the second implant part, a perspective representation of the first implant part, a perspective representation of the first implant part of another view with respect to Fig. 4 is a side view of the second implant part, a side view of the second implant part with a representation rotated 90Â ° with respect to FIG. 6 is a cross-section through the threaded ring having the bevel gear, the operating tool according to the invention dismantled in its individual parts in a top view, a perspective representation of the operating instrument completely assembled and dismantled in its individual parts, 7

Fig. 11 uma representação em perspectiva da forquilha do casquilho eFig. 11 is a perspective view of the fork of the bushing and

Fig. 12 a representação detalhada XII da fig. 1. 0 implante 1 representado no desenho destina-se à inserção entre os corpos vertebrais, em si não representados no desenho, da coluna vertebral como substituto para as vértebras ou partes de vértebras retiradas da coluna vertebral. Este implante 1 apresenta uma primeira parte 2 de implante e uma segunda parte 3 de implante reguláveis reciprocamente no sentido do seu eixo longitudinal coaxial para poder realizar uma modificação de comprimento no sentido de uma distracção dos corpos vertebrais. A primeira parte 2 de implante e a segunda parte 3 de implante estão concebidas como casquilhos em forma de tubo, em que a primeira parte 2 de implante envolve exteriormente a segunda parte 3 de implante. À primeira parte 2 de implante está atribuído um anel 4 roscado giratório, que na sua superfície de perímetro interior apresenta uma rosca 5 anelar, com a qual engrena numa rosca 6 atribuída à segunda parte 3 de implante. Na superfície do perímetro exterior, o anel 5 roscado está provido de um dentado 7 de engrenagem cónica (fig. 8).Fig. 12 is the detailed representation XII of Fig. 1. The implant 1 shown in the drawing is intended for insertion between the vertebral bodies, themselves not represented in the drawing, of the vertebral column as a substitute for the vertebrae or parts of vertebrae taken from the vertebral column. This implant 1 has a first implant part 2 and a second implant part 3 mutually adjustable in the direction of its coaxial longitudinal axis so as to be able to effect a lengthwise modification towards a distraction of the vertebral bodies. The first implant part 2 and the second implant part 3 are designed as tube-shaped bushes, wherein the first implant part 2 externally surrounds the second implant part 3. To the first implant part 2 is assigned a rotating threaded ring 4, which on its inner perimeter surface has an annular thread 5, with which it engages a thread 6 assigned to the second implant part 3. On the surface of the outer perimeter, the threaded ring 5 is provided with a bevel gear 7 (Figure 8).

Como é possível visualizar particularmente nas figuras 3 e 6, na segunda parte 3 de implante estão concebidas duas fendas 8 de guia opostas uma em relação à outra, nas quais se prolongam até ao interior os pinos 9 atribuídos à primeira parte 2 de implante (fig. 2).As can be seen in particular in Figures 3 and 6, in the second implant part 3 two guide slots 8 are conceived opposite one another in which the pins 9 assigned to the first implant part 2 (fig . 2).

Para além destes pinos 9, a primeira parte 2 de implante apresenta ainda uma abertura 10, que intercepta o rebordo 11 atribuído ao anel 4 roscado e que se encontra em alinhamento recto com um furo 12 roscado concebido do lado oposto. De forma alinhada com a abertura 10, na segunda parte 3 de implante estão previstos dois orifícios 13 oblongos, através dos quais o furo 1 roscado é acessível em qualquer posição de altura da segunda parte 3 de implante em relação à primeira parte 1 de implante.In addition to these pins 9, the first implant part 2 further has an aperture 10, which intersects the collar 11 assigned to the threaded ring 4 and which is in straight alignment with a threaded bore 12 designed on the opposite side. In alignment with the aperture 10, two oblong holes 13 are provided in the second implant part 3, through which the threaded bore 1 is accessible in any height position of the second implant part 3 relative to the first implant part 1.

Na segunda parte 3 de implante está concebida uma coroa 14 com distância da sua extremidade livre sobre o lado oposto à primeira parte 2 de implante, na qual estão concebidos orifícios 15 paralelos em relação ao eixo longitudinal do implante 1.In the second implant part 3 is conceived a crown 14 with a distance from its free end on the side opposite the first implant part 2, in which holes 15 are designed parallel to the longitudinal axis of the implant 1.

No perímetro interior, o anel 4 roscado apresenta um rebordo 16 anelar, enquanto a primeira parte 2 de implante apresenta uma ranhura 17 transversal perpendicular em relação ao eixo longitudinal do implante 1 concebida no casquilho em forma de tubo de forma, e que se encontra paralelamente em relação ao eixo de ligação da abertura 10 e do furo 12 roscado, em que no exemplo de realização representado no desenho, a ranhura 17 transversal está prevista duas vezes em ambos os lados do eixo de ligação. O anel 16 circular concebido no anel 4 roscado, assim como as ranhuras 17 transversais destinam-se ao melhor alinhamento e à determinação da posição de um instrumento 18 de operação descrito em seguida mais detalhadamente, que se destina à manuseamento e accionamento do implante 1 no ajuste de comprimento.On the inner circumference, the threaded ring 4 has an annular collar 16, while the first implant part 2 has a transverse groove 17 perpendicular to the longitudinal axis of the implant 1 which is formed in the sleeve in the shape of a tube and which is parallel in relation to the connecting axis of the aperture 10 and the threaded bore 12, wherein in the exemplary embodiment shown in the drawing, the transverse groove 17 is provided twice on both sides of the connecting shaft. The circular ring 16 designed on the threaded ring 4 as well as the transverse grooves 17 is intended for the best alignment and determination of the position of an operation instrument 18 described in more detail below, which is intended for the handling and actuation of the implant 1 in the length adjustment.

Para isso, o instrumento 18 de operação apresenta na extremidade livre de um veio 19 um pinhão 20 coaxial em relação ao eixo do veio. Neste pinhão 20 está concebido um dentado 21 de engrenagem cónica (fig. 9, fig. 10) . O veio 19 em si está 9 concebido como veio oco, no qual está montada uma barra 22 rotativa em relação ao veio oco. Esta barra 22 atravessa o pinhão 20 e apresenta na sua extremidade livre uma rosca 23 de barra que corresponde ao furo 12 roscado. 0 veio oco em si está montado de forma giratória num punho 24, que para isso apresenta um casquilho 25 no qual está inserido o veio oco. Este casquilho 25 possui na extremidade atribuida ao pinhão 20 uma forquilha 26 com quatro dedos 27 de forquilha, dos quais dois estão agrupados num primeiro par 28 de forquilha e dois estão agrupados num segundo par 29 de forquilha.To this end, the operating instrument 18 has at the free end of a shaft 19 a pinion 20 coaxial with respect to the axis of the shaft. In this pinion 20 a bevel gear 21 is designed (fig 9, fig 10). The shaft 19 itself is designed as a hollow shaft in which a rod 22 rotatable relative to the hollow shaft is mounted. This rod 22 passes through the pinion 20 and has at its free end a rod thread 23 which corresponds to the threaded hole 12. The hollow shaft itself is rotatably mounted on a handle 24, which for this purpose has a bushing 25 in which the hollow shaft is inserted. This bushing 25 has at the end assigned to the pinion 20 a fork 26 with four fork fingers 27, two of which are grouped in a first fork pair 28 and two are grouped in a second fork pair 29.

Após a descrição anterior da estrutura do implante 1 e do instrumento 18 de operação, em seguida deve estar demonstrada em maior detalhe a sua interacção.After the above description of the implant structure 1 and the operating instrument 18, its interaction should be demonstrated in greater detail.

Para posicionar o implante 1 de acordo com a invenção como substituto entre dois corpos vertebrais, o implante 1 é encaixado primeiro na forquilha 26, em que o segundo par 29 de forquilha é inserido nas duas ranhuras 17 transversais e o primeiro par 28 de forquilha assenta no anel 4 roscado e interiormente de forma radial no anel 16 circular, de modo a bloquear uma deslocação axial do anel 4 roscado no eixo longitudinal do implante 1 em relação à primeira parte 2 de implante. Em seguida, a barra 22 com a rosca 23 de barra é conduzida através v abertura 10 da primeira parte 2 de implante, assim como através dos orifícios 13 oblongos da segunda parte 3 de implante e aparafusada no furo 12 roscado da primeira parte 2 de implante, de modo a não ser possível retirar mais o instrumento 18 de operação do implante lno sentido radial, fixando, deste modo, a posição do instrumento 18 de operação ao todo em relação ao implante 1. Ao aparafusar a rosca 23 de barra no orifício 12 roscado é possível engrenar simultaneamente o 10 dentado 21 de engrenagem cónica do pinhão 20 com o dentado 7 de engrenagem cónica do anel 4 roscado, de modo gue na rotação subsequente do veio 19 à volta do seu eixo do veio através de uma roda 30 de accionamento, se realiza uma rotação do anel 4 roscado à volta do eixo longitudinal do implante 1 rodado em 90° em relação ao eixo do veio.In order to position the implant 1 according to the invention as a substitute between two vertebral bodies, the implant 1 is first fitted into the fork 26, wherein the second fork pair 29 is inserted into the two transverse grooves 17 and the first fork pair 28 lies in the ring 4 threaded and internally radially in the circular ring 16, so as to block an axial displacement of the ring 4 threaded in the longitudinal axis of the implant 1 relative to the first implant part 2. Thereafter the bar 22 with the bar thread 23 is driven through the aperture 10 of the first implant part 2 as well as through the oblong holes 13 of the second implant part 3 and screwed into the threaded bore 12 of the first implant part 2 , so that it is no longer possible to withdraw the implant operating instrument 18 in the radial direction, thereby securing the position of the operating instrument 18 in relation to the implant 1. By screwing the bar thread 23 into the hole 12 it is possible to simultaneously engage the pinion gear tooth gear 21 of the pinion 20 with the taper gear teeth 7 of the threaded ring 4 so that the subsequent rotation of the shaft 19 about its shaft axis through a drive wheel 30 , a rotation of the threaded ring 4 is performed about the longitudinal axis of the implant 1 rotated 90 ° with respect to the axis of the shaft.

Após o posicionamento e distracção correctos do implante 1, o instrumento 18 de operação pode ser retirado novamente do implante 1 na inversão adequada das etapas descritas anteriormente, que pelas fendas 8 de guia, orificios 13 oblongos e furos 12 roscados então livremente acessiveis, assim como a abertura 10 oferece possibilidades de acesso suficientes ao interior das primeiras partes 2 de implante e segundas partes 3 de implante em forma de casquilho para inserir cimento para ossos ou material ósseo autólogo ou homólogo no implante. O acessório indicado com o sinal de referência 31 representado na figura 1 serve de acoplamento do instrumento 18 de operação com sensores de posição para navegação no computador.After correct positioning and distraction of the implant 1, the operating instrument 18 may be withdrawn again from the implant 1 in the appropriate reversal of the steps described above, than by the guide slots 8, oblong holes 13 and threaded holes 12 then freely accessible, as well as the aperture 10 provides sufficient access possibilities to the interior of the first implant parts 2 and second bushing-shaped implant parts 3 to insert bone cement or autologous or homologous bone material into the implant. The accessory indicated with the reference signal 31 shown in Figure 1 serves as coupling of the operation instrument 18 with position sensors for navigation on the computer.

Lisboa, 8 de Novembro de 2006 11Lisbon, 8 November 2006 11

Claims (20)

REIVINDICAÇÕES 1. Implante para inserção entre corpos vertebrais da coluna vertebral como substituto para as vértebras ou partes de vértebras retiradas da coluna vertebral, com uma primeira parte (2) de implante e uma segunda parte de implante (3) reguláveis reciprocamente no sentido do seu eixo longitudinal coaxial para a modificação de comprimento do implante (1), caracterizado por à primeira parte (2) de implante estar atribuído um anel (4) roscado giratório que engrena com uma rosca (5) anelar numa rosca (6) atribuída à segunda parte (3) de implante, e por o anel (4) roscado estar provido de um dentado (7) de engrenagem cónica.An implant for insertion between vertebral bodies of the spine as a substitute for the vertebrae or parts of vertebrae withdrawn from the spine, with a first implant part (2) and a second implant part (3) mutually adjustable in the direction of their vertebrae. coaxial longitudinal axis for implant length modification (1), characterized in that the first implant part (2) is assigned a rotatable threaded ring (4) which engages with an annular thread (5) on a thread (6) assigned to the second (3) and in that the threaded ring (4) is provided with a bevel gear (7). 2. Implante de acordo com a reivindicação 1, caracterizado por a primeira parte (2) de implante e a segunda parte (3) de implante estarem configuradas como casquilhos em forma de tubo, e por a primeira parte (2) de implante envolver exteriormente com o anel (4) roscado a segunda parte (3) de implante.Implant according to claim 1, characterized in that the first implant part (2) and the second implant part (3) are configured as tube-shaped bushes, and in that the first implant part (2) with the ring (4) threaded to the second implant part (3). 3. Implante de acordo com a reivindicação 1 ou 2, caracterizado por na segunda parte (3) de implante estar concebido pelo menos uma fenda (8) de guia para a recepção de um pino (9) atribuído à primeira parte (2) de implante.Implant according to claim 1 or 2, characterized in that in the second implant part (3) there is provided at least one guide slot (8) for receiving a pin (9) assigned to the first part (2) of implant. 4. Implante de acordo com a reivindicação 3, caracterizado por a fenda (8) de guia e o pino (9) estarem previstos duas vezes em disposição diametral. 1Implant according to claim 3, characterized in that the guide slot (8) and the pin (9) are provided twice in diametral arrangement. 1 5. Implante de acordo com qualquer uma das reivindicações 2 a 4, caracterizado por na parede da primeira parte (2) de implante em forma de casquilho existir pelo menos uma abertura (10) que intercepta o rebordo (11) atribuído ao anel (4) roscado.Implant according to any one of claims 2 to 4, characterized in that on the wall of the first bushing-shaped implant part (2) there is at least one opening (10) which intersects the collar (11) assigned to the ring (4). ) threaded. 6. Implante de acordo com a reivindicação 5, caracterizado por existirem dois orifícios (13) oblongos de forma alinhada com a abertura (10) na segunda parte (3) de implante.Implant according to claim 5, characterized in that there are two orifices (13) which are oblong in alignment with the opening (10) in the second implant part (3). 7. Implante de acordo com a reivindicação 6, caracterizado por estar concebido um furo (12) roscado no lado oposto à abertura (10) na parede da primeira parte (2) de implante.Implant according to claim 6, characterized in that a bore (12) is provided on the side opposite the opening (10) in the wall of the first implant part (2). 8. Implante de acordo com qualquer uma das reivindicações 1 a 7, caracterizado por na segunda parte (3) de implante estar concebida uma coroa (14) na extremidade oposta à primeira parte (2) de implante.An implant according to any one of claims 1 to 7, characterized in that a crown (14) is provided in the second end (3) of the implant opposite the first implant part (2). 9. Implante de acordo com a reivindicação 8, caracterizado por a coroa (14) estar disposta com distância da extremidade livre da segunda parte (3) de implante.Implant according to claim 8, characterized in that the crown (14) is disposed with a distance from the free end of the second implant part (3). 10. Implante de acordo com a reivindicação 8 ou 9, caracterizado por na coroa (14) estarem concebidos orifícios (15) paralelos em relação ao eixo longitudinal do implante (1).An implant according to claim 8 or 9, characterized in that holes (15) are provided parallel to the longitudinal axis of the implant (1) on the crown (14). 11. Implante de acordo com qualquer uma das reivindicações 1 a 10, caracterizado por o anel (4) roscado apresentar um anel (16) circular no perímetro interior. 2An implant according to any one of claims 1 to 10, characterized in that the threaded ring (4) has a circular ring (16) on the inner perimeter. 2 12. Implante de acordo com qualquer uma das reivindicações 2 a 11, caracterizado por a primeira parte (2) de implante apresentar uma ranhura (17) transversal, perpendicular em relação ao eixo longitudinal do implante (1) concebida no casquilho em forma de tubo de forma.Implant according to any one of claims 2 to 11, characterized in that the first implant part (2) has a transverse groove (17) which is perpendicular to the longitudinal axis of the implant (1) in the tube-shaped sleeve of form. 13. Implante de acordo com a reivindicação 12, caracterizado por a ranhura (17) transversal se encontrar paralelamente em relação ao eixo de ligação da abertura (10) e do furo (12) roscado.An implant according to claim 12, characterized in that the transverse groove (17) is parallel to the connecting axis of the aperture (10) and the threaded bore (12). 14. Implante de acordo com a reivindicação 13, caracterizado por a ranhura (17) transversal estar concebida em ambos os lados do eixo de ligação no casquilho em forma de tubo da primeira parte (2) de implante.An implant according to claim 13, characterized in that the transverse groove (17) is designed on both sides of the connecting shaft in the tube-shaped socket of the first implant part (2). 15. Instrumento de operação para distracção de um implante (1) que apresenta um dentado (7) de engrenagem cónica ajustável em comprimento através de uma união roscada, para inserção entre corpos vertebrais da coluna vertebral como substituto para vértebras ou partes de vértebras retiradas da coluna vertebral, de acordo com qualquer uma das reivindicações 1 a 14, caracterizado por na extremidade livre de um veio (19) estar disposto um pinhão (20) coaxial em relação ao eixo do veio com um dentado (21) de engrenagem cónica.An operating instrument for distracting an implant (1) having a bevel gear (7) that is adjustable in length through a threaded joint, for insertion between vertebral bodies of the vertebral column as a substitute for vertebrae or parts of vertebrae taken from the vertebrae. The spinal column according to any one of claims 1 to 14, characterized in that a pinion (20) coaxial to the axis of the shaft with a bevel gear (21) is arranged at the free end of a shaft (19). 16. Instrumento de operação de acordo com a reivindicação 15, caracterizado por o veio (19) estar montado de forma giratória num punho (24) e estar provido para accionamento de uma roda (30) de accionamento na extremidade oposta ao pinhão (20). 3Operating apparatus according to claim 15, characterized in that the shaft (19) is rotatably mounted on a handle (24) and is provided for driving a drive wheel (30) at the end opposite the pinion (20) . 3 17. Instrumento de operação de acordo com a reivindicação 15 ou 16, caracterizado por o veio (19) estar configurado como veio oco, no qual está montada uma barra (22) rotativa em relação ao veio oco que atravessa o pinhão (20) com a sua extremidade livre e no qual está concebida uma rosca (23) de barra que corresponde ao furo (12) roscado.Operating apparatus according to claim 15 or 16, characterized in that the shaft (19) is configured as a hollow shaft, in which a rod (22) is rotatable relative to the hollow shaft passing through the pinion (20) with its free end and in which a rod thread (23) corresponding to the threaded bore (12) is designed. 18. Instrumento de operação de acordo com a reivindicação 16 ou 17, caracterizado por o veio (19) estar disposto num casquilho (25) fixo no punho (24), que na extremidade atribuída ao pinhão (20) apresenta uma forquilha (26) com dedos (27) de forquilha que originam uma fixação da posição axial mútua do anel (4) roscado e da primeira parte (2) de implante.An operating apparatus according to claim 16 or 17, characterized in that the shaft (19) is arranged in a bushing (25) fixed to the handle (24), which at the end assigned to the pinion (20) has a yoke (26) with fork fingers (27) providing a mutual axial position fixing of the threaded ring (4) and the first implant part (2). 19. Instrumento de operação de acordo com a reivindicação 18, caracterizado por a forquilha (26) apresentar ao todo quatro dedos (27) de forquilha que suportam o implante (1), dos quais dois estão agrupados num primeiro par (28) de forquilha e previstos para o apoio no anel (4) roscado e dois estão agrupados num segundo par (29) de forquilha e previstos para inserção nas ranhuras (17) transversais.Operating apparatus according to claim 18, characterized in that the fork (26) has four forks (27) which support the implant (1), two of which are grouped in a first fork pair (28) and provided for the support in the threaded ring (4) and two are grouped in a second fork pair (29) and provided for insertion into the transverse grooves (17). 20. Instrumento de operação de acordo com qualquer uma das reivindicações 15 a 19, caracterizado por o veio (19) com a roda (30) de accionamento, a barra (22) e o punho (24) com o casquilho (25) estarem montados de forma a poderem ser desmontados. Lisboa, 8 de Novembro de 2006 4Operating apparatus according to any one of claims 15 to 19, characterized in that the shaft (19) with the drive wheel (30), the bar (22) and the handle (24) with the bush (25) are mounted so that they can be disassembled. Lisbon, 8 November 2006 4
PT01126995T 2000-12-27 2001-11-14 Implant for the insertion between the vertebraes and operation tool for using the implant PT1219266E (en)

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